docs: def disvecinf(self, x, y, aq=None):
          '''Can be called with only one x,y value
          Returns array(nparam, self.aq.naq) with order
          order 0, layer[0]
          order 0, layer[1]
          ...
          order 1, layer[0]
          order 1, layer[1]
          etc
          '''
          if aq is None: aq = self.model.aq.find_aquifer_data(x, y)
          rv = np.zeros((2, self.nparam, aq.naq))
          if aq == self.aq:
              qxqyrv = rv.reshape((2, self.order + 1, self.nlayers,
                                   aq.naq))  # clever way of using a reshaped rv here
              qxqy = np.zeros((2 * (self.order + 1), aq.naq))
              qxqy[:, :] = self.bessel.disbesldv(float(x), float(y), self.z1, self.z2, aq.lab,
                                                 self.order, aq.ilap, aq.naq)
              qxqyrv[0, :] = self.aq.coef[self.layers] * qxqy[:self.order + 1,
                                                         np.newaxis, :]
              qxqyrv[1, :] = self.aq.coef[self.layers] * qxqy[self.order + 1:,
                                                         np.newaxis, :]
          return rv